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NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | COLOPHON |
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SYSTEMD-....SERVICE(8) systemd-machine-tag@.serviceSYSTEMD-....SERVICE(8)
systemd-machine-tag@.service - Add a machine tag to the host
systemd-machine-tag@.service
systemd-machine-tag@TAG.service is a service template that adds
the machine tag TAG (taken from the instance name) to the host's
list of machine tags. Whenever an instance of this template is
pulled in, the corresponding tag is added; the operation is
idempotent, so pulling it in repeatedly has no further effect.
The primary use of this template is automatic, hardware-driven
tagging: the SYSTEMD_MACHINE_TAG udev property, when set on a
device, causes the matching instance of this template to be pulled
in (via SYSTEMD_WANTS=), so that plugging in or detecting a
specific device automatically tags the host. See systemd.device(5)
for details on the SYSTEMD_WANTS= mechanism.
Machine tags may be inspected and edited with the tags verb of
hostnamectl(1), and are stored in the TAGS= field of
machine-info(5). Each tag must be 1...255 characters long and
consist only of ASCII alphanumeric characters, "-" and ".".
Added in version 262.
systemd(1), hostnamectl(1), systemd-hostnamed.service(8),
machine-info(5), udev(7)
This page is part of the systemd (systemd system and service
manager) project. Information about the project can be found at
⟨http://www.freedesktop.org/wiki/Software/systemd⟩. If you have a
bug report for this manual page, see
⟨http://www.freedesktop.org/wiki/Software/systemd/#bugreports⟩.
This page was obtained from the project's upstream Git repository
⟨https://github.com/systemd/systemd.git⟩ on 2026-08-04. (At that
time, the date of the most recent commit that was found in the
repository was 2026-08-03.) If you discover any rendering
problems in this HTML version of the page, or you believe there is
a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
man-pages@man7.org
systemd 262~devel SYSTEMD-....SERVICE(8)
Pages that refer to this page: systemd.directives(7), systemd.index(7)
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HTML rendering created 2026-09-09 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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